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10/25/09
1
My PhD Experience
Rosta Farzan (rfarzan@cs.cmu.edu)
Oct 19, 2009
My PhD Experience…
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My PhD Experience…
SharifUniversityofTechnologyBachelor’sofScienceinComputerEngineering
My PhD Experience…
So;wareengineer@aso;warecompanyE‐businesssystemsfordialoguesbetweenpeers
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My PhD Experience…
CaliforniaStateUniversity,EastBayMasterofScienceinComputerScience
My PhD Experience…
SocialNavigaDon
Usermodeling
IntelligentTutoringSystems
Cogni;veModelingSocialPsychology
MachineLearning
Ar;ficialIntelligence
NeuralNetworks
Intelligentagents
RecommenderSystems
StudentModeling
Womenandminori;esinComputerScience
Informa;onoverloadPeersupport
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My PhD Experience…
"without knowing much, we joined the longest exis5ng queue formed for a sushi restaurant. looking at faces of people (both young and old) filled with expecta5ons despite the long wait in the cold weather, we were sure that the food would be worth every minute of wai5ng 5me. well, it was.“
YoungheeJung‐hGp://www.flickr.com/people/younghee/
SocialNaviga;on?
My PhD Experience…
Master’sThesisProject
Studyproblemofunderrepresenta;onoffemaleandminoritystudentsincomputerscience
Howonlinelearningcanimprovethesitua;on?
Howsocialnaviga;oncanenrichonlineeduca;onalinforma;onsystems?
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My PhD Experience…
My PhD Experience…
Con;nueon“SocialNaviga;on”
Doesitwork?Always?
Foreveryone?
Buildingapplica;onstostudysocialnaviga;onClassroomstudiesLabexperiments
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My PhD Experience…
My PhD Experience…
SocialNaviga;onSupport
Visualizingindividualoraggregatedac;onsHelpingtofilteroutirrelevantinforma;on
Helpingtodecidewheretogonext
Le[ngusersreshapestheinforma;onenvironmentAddingsocialtextureAddingsocialaffordance
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My PhD Experience…
KnowledgeSea
Helpingstudentsfindrelevanteduca;onalinforma;onamonghundredsofonlinetutorialpages
SocialNaviga;onSupportbasedonpaststudents‘interac;onwiththesystem
My PhD Experience…
StudentsvisitpageswithsocialnavigaDoncuessignificantlymore
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My PhD Experience…
CourseAgent
Communitybasedcourserecommenda;onCumula;ve“community”ra;ngs
Automa;ngword‐of‐mouthprocess
My PhD Experience…
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My PhD Experience…
UnderContribu;onProblemAllgood
butIFusersprovidefeedbackChallenge:elici;ngusersfeedback– Implicituserbehavior
• Clicks,;mespent
– Mo;va;ngcontribu;on• Emphasizecommunitybenefits• Setgoalsfortheuser• Provideaddi;onalselfbenefit• Rewardac;ons• Enhanceuser’sreputa;on
My PhD Experience…
EncouragingContribu;on
RewardandReputa;onbasedincen;veforencouragingcontribu;onforIBMsocialnetworksite,“Beehive”
RewardsNorewardforaddingconnec;ons+5pointsforeachphoto+10pointsforeachlist+15pointsforeachcomment+100pointsforfirstprofileitem
Status Number of Points
new bee <110
worker bee <500
busy bee <2000
super bee >=2000
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My PhD Experience…
Result
Employeesweremo;vatedSignificantincreaseincontribu;onIncreaseincontribu;onstothesiteinspiredotheruserstopar;cipatemore
ProblemsGamingDiscouragesomeusers
My PhD Experience…
Disserta;onStudy
Whendoessocialnaviga;onworksthebest?Controlledexperiment
Observa;on,Eyetracking,Loganalysis
ComparingPerformingtasksunder;mepressureornotGenderdifferences
Interpersonaltrustdifferences
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My PhD Experience…
Result
Asignificanteffectof;mepressureSignificanteffectofinterpersonaltrust
Nosignificantgenderdifferences
My PhD Experience…
CarnegieMellonUniversityPostdoctoralinHumanComputerInteracDonInsDtute
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My PhD Experience…
CurrentResearch
Studyinguserbehaviorinonlinecommuni;esandchallengesofonlinecommuni;es
ApplyingsocialpsychologytheoriesUnderstandingthetheoriesUnderstandingthedifferencesofonlinecommuni;esversustradi;onalcommuni;es
My PhD Experience…
WhatisPhDallAbout?
• Exploring• Learningtodoresearch• Learningtobecrea;veandanaly;cal• Askingalotofques;onsandtryingtocomeupwithapproachestotackletheques;ons
• Beingfrustrated• Beinghappy• Beingproud
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My PhD Experience…
Pickingadvisor• TalktoALLrelevantfaculty• Trytodoaprojectwiththemostrelevantfacultyearlyon(evenaverysmallproject)
• Researchandpersonality(workingstyle)match
My PhD Experience…
Explore• Takecoursesfromvariousareas
• Akendseminars,andtalks
• Readalotofpapers• Takenotes(Youwon’tremember)
• AndbeVERYsystema;c(alotofgoodtools)
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My PhD Experience…
Akendconferences• Checkforconferencesintheareathatarecheaptoakend
• Askyouradvisoriftheycansendyoutorelevantconferences
• AkendDoctoralConsor;um
My PhD Experience…
Takeadvantagesofresources• Smartpeople• Accesstobooks,journals,magazines
• Accesstosomware
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My PhD Experience…
ResearchMethodology• Readaboutdifferentresearchmethodologiestoknowwhichoneappliestoyourresearch
• Takeresearchdesigncourse(preferablysecondyear)
• Payaken;ontoresearchmethodologieswhenreadingpapers
My PhD Experience…
Sta;s;cs• Takeseveralcourses• Nottooearly• Connectcourseswithprojectsandresearch
• Payaken;ontosta;s;calanalysiswhenreadingpapers
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My PhD Experience…
Wri;ngandpresenta;onskills
• Takingwri;ngcourses• Takepresenta;onsseriousandprac;cewithfriends
My PhD Experience…
TalktoOtherPhDStudents• YouarenotALONE!• Otherstudentsexperiencesameproblems,challenges,frustra;ons,excitements,…
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My PhD Experience…
Volunteer• Studentvolunteeratconferences• Organizeacademicevents• Talks,seminars,workshops,…
My PhD Experience…
Internship• TrytodoseveralinternshipsduringyourPhD
• Researchlabs,universitylabs,industry
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My PhD Experience…
ReadPhDComics
My PhD Experience…
Havealife!• Itwillnevergeteasier!• Takefuncourses• Getenoughsleep• Leaveworkforadaywhenyouaretoofrustrated
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My PhD Experience…
UsefulResources&Tools
• CiteULike(hGp://www.citeulike.org/)• ProfessionalgroupsonsocialnetworksitessuchasFacebook,andLinkedIn
• Tools– SPSS:sta;s;calanalysis– WinEdt:wri;ngpapers
– Notepad++:agoodeditor– Veryusefulwebportal(hGp://www.sis.piG.edu/
~tloboda/res/prod/web‐portal/)
My PhD Experience…
Ques;ons?rfarzan@cs.cmu.edu
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